spec/async/io/stream_spec.rb in async-io-1.12.1 vs spec/async/io/stream_spec.rb in async-io-1.12.2

@@ -48,16 +48,27 @@
 			expect(stream).to be_eof
 		end
 	end
 	
 	describe '#read_until' do
+		include_context Async::RSpec::Memory
+		
 		it "can read a line" do
 			io.write("hello\nworld\n")
 			io.seek(0)
 			
 			expect(stream.read_until("\n")).to be == 'hello'
 			expect(stream.read_until("\n")).to be == 'world'
 			expect(stream.read_until("\n")).to be_nil
+		end
+		
+		it "minimises allocations" do
+			io.write("hello\nworld\n")
+			io.seek(0)
+			
+			expect do
+				stream.read_until("\n")
+			end.to limit_allocations(String => 3)
 		end
 	end
 	
 	describe '#flush' do
 		it "should not call write if write buffer is empty" do